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Journal articles
Robust IDA-PBC for underactuated mechanical systems subject to matched disturbances
Abstract : The problem of robustification of interconnection and damping assignment passivity‐based control for underactuated mechanical system vis‐à‐vis matched, constant, and unknown disturbances is addressed in the paper. This is achieved adding an outer‐loop controller to the interconnection and damping assignment passivity‐based control. Three designs are proposed, with the first one being a simple nonlinear PI, while the second and the third ones are nonlinear PIDs. While all controllers ensure stability of the desired equilibrium in spite of the presence of the disturbances, the inclusion of the derivative term allows us to inject further damping enlarging the class of systems for which asymptotic stability is ensured. Numerical simulations of the Acrobot system and experimental results on the disk‐on‐disk system illustrate the performance of the proposed controller.
https://hal-centralesupelec.archives-ouvertes.fr/hal-01815715
Contributor : Myriam Baverel Connect in order to contact the contributor
Submitted on : Thursday, June 14, 2018 - 2:19:55 PM
Last modification on : Saturday, May 1, 2021 - 3:48:57 AM
Contributor : Myriam Baverel Connect in order to contact the contributor
Submitted on : Thursday, June 14, 2018 - 2:19:55 PM
Last modification on : Saturday, May 1, 2021 - 3:48:57 AM